Washington, Mar 10 : Insomnia can be a chronic problem lasting more than a year, a new study has found.
Insomnia is a symptom of a sleeping disorder characterized by persistent difficulty falling asleep or staying asleep despite the opportunity.
Several factors such as being female, increasing age, having anxiety or depression and experiencing pain from medical conditions have been associated with insomnia.
The condition has been linked to higher health care costs, work absenteeism, disability and higher risk of hypertension and depression.